import junit.framework.TestCase;
import org.junit.Test;

public class ComplexTest extends TestCase {
    Complex c1 = new Complex(2, 3);
    Complex c2 = new Complex(1, 2);
    Complex c3 = new Complex(-2,1);
    @Test
    public void testComplexAdd() throws Exception {
        assertEquals("3.0+5.0i", c1.ComplexAdd(c2).toString());
        assertEquals("0.0+4.0i", c1.ComplexAdd(c3).toString());
        assertEquals("-1.0+3.0i", c2.ComplexAdd(c3).toString());
    }
    @Test
    public void testComplexSub() throws Exception {
        assertEquals("1.0+1.0i", c1.ComplexSub(c2).toString());
        assertEquals("4.0+2.0i", c1.ComplexSub(c3).toString());
        assertEquals("3.0+1.0i", c2.ComplexSub(c3).toString());
    }
    @Test
    public void testComplexMulti() throws Exception {
        assertEquals("-4.0+7.0i", c1.ComplexMulti(c2).toString());
        assertEquals("-7.0 -4.0i", c1.ComplexMulti(c3).toString());
        assertEquals("-4.0 -3.0i", c2.ComplexMulti(c3).toString());
    }
}

